An international
team of scientists led by Hussein Aluie, associate professor in the Department
of Mechanical Engineering at the University of Rochester, United Kingdom, and a
scientist at the University’s Lase Energy Laboratory, has found the first
direct test liking seemingly random weather system in the ocean to the global
climate, according to the journal ‘Science Advances’.
According to
Benjamin Storer, lead author of the study and associate researcher of the Aluie
Turbulence and Complex Flux Group, there are weather patterns similar to terrestrial
ones in the ocean, but at different time scales and length.
A weather
pattern on land can last a few days and be about 500 kilometres wide, while
ocean patterns, such as swirls, last between three and four weeks, but are one
fifth of their size.
“Scientist
have long speculated on the possibility that these ubiquitous and seemingly
random ocean movements will communicate with the climate scales, but it has
always been vague because it was not clear how to unravel this complex system
to measure its interactions”, says Aluie. “We’ve developed a framework that can
do exactly that. What we found was not what people expected because it requires
the mediation of the atmosphere”.
The group’s
goal was to understand how energy passed through the different ocean channels
across the planet. They used a mathematical method developed by Aluie in 2019,
which was later implemented in an advanced code by Storer and Aluie, which
allowed them to study the transfer of energy through different patterns ranging
from the circumference of the globe to 10 kilometers. There techniques were
then applied to ocean data sets from an advanced climate model and satellite
observations.